会声会影如何添加交叉转场效果

[[{"txt": "\u5728\u89c6\u9891\u526a\u8f91\u4e2d\uff0c\u4ea4\u53c9\u8f6c\u573a\u662f\u4e00\u4e2a\u6bd4\u8f83\u5e38\u7528\u7684\u8f6c\u573a\u65b9\u5f0f\uff0c\u8fd9\u91cc\u5c31\u7ed9\u5927\u5bb6\u8bf4\u4e00\u4e0b\u5982\u4f55\u4f7f\u7528 \u4f1a\u58f0\u4f1a\u5f71\u5236\u4f5c\u4ea4\u53c9\u8f6c\u573a\u7684\u6548\u679c\u3002"}, {"img": ["https://exp-picture.cdn.bcebos.com/8db0c6a726334884a537229fddee7b7f870e456b.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}], [{"txt": ["\u5de5\u5177/\u539f\u6599"]}, {"txt": "\u4f1a\u58f0\u4f1a\u5f71"}], [{"txt": ["\u65b9\u6cd5/\u6b65\u9aa4"]}, {"txt": "\u9996\u5148\uff0c\u6211\u4eec\u5148\u6dfb\u52a0\u7d20\u6750\uff0c\u6211\u8fd9\u91cc\u6dfb\u52a0\u7684\u662f\u4e24\u5f20\u56fe\u7247\u4e3a\u7d20\u6750"}, {"img": ["https://exp-picture.cdn.bcebos.com/7a3e980e7c75e5f4932187beb1ceaad7736bbc6b.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}, {"txt": "\u7136\u540e\uff0c\u6211\u4eec\u5c06 \u4e24\u5f20\u7d20\u6750\u56fe\u7247\u62d6\u52a8\u5230\u89c6\u9891\u8f68\u9053\u4e0a\u9762\u6765"}, {"img": ["https://exp-picture.cdn.bcebos.com/ab966c6b0ce265e742db0dcb9f23beb9773eb76b.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}, {"txt": "\u7136\u540e\u70b9\u51fb \u8f6c\u573a\uff0c\u9009\u62e9\u80f6\u7247\uff0c\u7136\u540e\u9009\u62e9\u4ea4\u53c9"}, {"img": ["https://exp-picture.cdn.bcebos.com/2083a5d6e1d06de8e5b5ef96ca93cee8b104ac6b.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}, {"txt": "\u7136\u540e\u628a\u8f6c\u573a\u62d6\u52a8\u5230\u4e24\u5f20\u56fe\u7247\u7684\u4e2d\u95f4"}, {"img": ["https://exp-picture.cdn.bcebos.com/d04eec260d9a310e9e4d809931b842406bfea26b.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1", "https://exp-picture.cdn.bcebos.com/c255efc595ee41c125f3c5e08d88912ca4ca9b6b.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}, {"txt": "\u7136\u540e\u5c31\u80fd\u770b\u5230\u4ea4\u53c9\u8f6c\u573a\u7684\u6548\u679c"}, {"img": ["https://exp-picture.cdn.bcebos.com/dda98e4800fc77f703da3693c8715fdb3720906b.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}, {"txt": "\u6211\u4eec\u53ef\u4ee5\u9009\u4e2d\u8f6c\u573a\u7684\u8fd9\u4e2a\u5730\u65b9\uff0c\u7136\u540e\u70b9\u51fb\u53f3\u4fa7\u7684\u9009\u9879"}, {"img": ["https://exp-picture.cdn.bcebos.com/ccc83ec5260f8835785e306dce0788013970866b.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}, {"txt": "\u7136\u540e\u5c31\u80fd\u8bbe\u7f6e\u8fd9\u4e2a\u8f6c\u573a\u7684\u5176\u4ed6\u8bbe\u7f6e"}, {"img": ["https://exp-picture.cdn.bcebos.com/a44e8afc508c9bce762ce3c4d6dd884ce44afa6b.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}], [{"txt": ["\u6ce8\u610f\u4e8b\u9879"]}, {"txt": "\u6b64\u7ecf\u9a8c\u6587\u7ae0\u4e2d\u7684\u56fe\u6587\u7686\u7531 \u4e0d\u5fc8yff \u72ec\u7acb\u7f16\u64b0\uff0c\u5e76\u9996\u53d1\u4e8e\uff0c\u5982\u8981\u8f6c\u8f7d\uff0c\u8bf7\u7559\u51fa\u5904\u3002"}, {"txt": "\u6709\u5e2e\u52a9\uff0c\u70b9\u6295\u7968\u3002\u8981\u7ec6\u54c1\uff0c\u53ef\u6536\u85cf\u3002\u8981\u7ee7\u7eed\uff0c\u8bf7\u5173\u6ce8\u3002\u5982\u6210\u529f\uff0c\u8bf7\u70b9\u8d5e\u3002\u6709\u7591\u95ee\uff0c\u8bf7\u7559\u8bc4\u3002"}]]